Mass Effect 3 Wiki Guide

Chakram Launcher

On January 11, 2011, EA announced a crossover between Kingdoms of Amalur: Reckoning and Mass Effect 3. Playing the demo for Kingdoms of Amalur will unlock two Reckoning-inspired in-game items in Mass Effect 3, while playing the Mass Effect 3 demo will unlock armor and a weapon in Kingdoms of Amalur.

Playing the demo of Kingdoms of Amalur will lead to a Chakram Launcher weapon in Mass Effect 3. EA says the launcher "uses a fabricator to manufacture lightweight, explosive ammunition discs."